Filter Nipple 13/16-16

The Filter Nipple 13/16-16 by DERALE is a precision-engineered coolant adapter designed for integrated cooling system modifications and custom fluid management in modern automotive builds. This fitting serves as a critical junction point in bypass or auxiliary cooling circuits, allowing you to redirect coolant flow to aftermarket coolers, heater cores, or filtered reservoirs without compromising factory hose routing integrity. Whether you're building a high-performance street machine, upgrading a track-dedicated vehicle, or installing auxiliary transmission or engine oil cooling systems, this adapter bridges your factory port to aftermarket plumbing with a clean, leak-free interface.

The 13/16-16 designation identifies the barbed nipple inlet (13/16 inch) paired with a 16-millimeter threaded port connection, enabling dual-media compatibility in cooling or fluid transfer applications. DERALE's manufacturing precision ensures concentricity and burr-free edges that eliminate leaks at the barb-to-hose interface while the threaded outlet accepts standard metric fittings or block adapters. Compact dimensions—measuring 2.75 by 1.4 by 4.15 inches—allow this fitting to nestle into tight engine bay spaces without requiring costly custom bracket fabrication. The lightweight aluminum or brass construction resists corrosion in glycol-based coolant environments and maintains structural integrity under the pressure demands of mechanical water pumps or auxiliary cooling loops.

Professionals installing auxiliary transmission coolers, sandwich plate oil coolers, or redundant engine coolant circuits rely on this fitting to create reliable, code-free connections that pass pressure tests and real-world durability assessments. Installation is straightforward: thread the metric port into your block adapter or manifold, then secure hose clamps over the barbed inlet to your OEM or high-flow aftermarket hose. The Filter Nipple 13/16-16 complements both mild restorations and extreme builds, making it essential for anyone serious about custom cooling architecture or fluid management upgrades.